Home / 1,587.33-2,188.47-1,026.81

Finding the Fourth Proportional to 1,587.33, 2,188.47 and 1,026.81

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Solution

The fourth proportional to 1,587.33, 2,188.47 and 1,026.81 is: 1,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.33 : 2,188.47 = 1,026.81 : x
  2. Step 2: Convert to fraction form
    1,587.33/2,188.47 = 1,026.81/x
  3. Step 3: Cross multiply
    1,587.33x = 2,188.47 × 1,026.81
  4. Step 4: Simplify right side
    1,587.33x = 2,247,142.88
  5. Step 5: Solve for x
    x = 2,247,142.88/1,587.33
  6. Step 6: Final answer
    x = 1,415.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.